package vikaa.crash;


import java.io.File;
import java.io.FileOutputStream;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.io.Writer;
import java.lang.Thread.UncaughtExceptionHandler;
import java.lang.reflect.Field;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

import org.json.JSONObject;

import vikaa.pushservice.PushService;
import vikaa.tools.HttpUtil;
import vikaa.ui.Welcome;
import vikaa.wowo.cache.AuthoSharePreference;
import vikaa.wowo.cache.DefaultValueSharePreference;
import vikaa.wowo.cache.UserInfoSharePreference;


import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.os.Build;
import android.os.Environment;
import android.os.Looper;
import android.provider.Settings.Secure;
import android.sax.StartElementListener;
import android.view.WindowManager;

public class CrashHandler implements UncaughtExceptionHandler {
	
	public static final String TAG = "CrashHandler";
	
	private Thread.UncaughtExceptionHandler mDefaultHandler;
	private static CrashHandler INSTANCE = new CrashHandler();
	private Context mContext;
	private Map<String, String> infos = new HashMap<String, String>();

	private DateFormat formatter = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");

	private CrashHandler() {
	}

	public static CrashHandler getInstance() {
		return INSTANCE;
	}

	/**
	 * @param context
	 */
	public void init(Context context) {
		mContext = context;
		mDefaultHandler = Thread.getDefaultUncaughtExceptionHandler();
		Thread.setDefaultUncaughtExceptionHandler(this);
	}
	public void uncaughtException(Thread thread, Throwable ex) {
		if (!handleException(ex) && mDefaultHandler != null) {
			mDefaultHandler.uncaughtException(thread, ex);
		} else {
			try {
				Thread.sleep(3000);
			} catch (InterruptedException e) {
			}
			File file = mContext.getFileStreamPath("wf.log");
        	if(file.exists()){
        		file.delete();
        	}
        	UserInfoSharePreference.putCrash(mContext, "1");
        	DefaultValueSharePreference.putLoginFlag(mContext, false);
        	AuthoSharePreference.putCookie(mContext, "");
        	Intent intent = new Intent(mContext,Welcome.class);
        	mContext.startActivity(intent);
			/*android.os.Process.killProcess(android.os.Process.myPid());
			System.exit(0);*/
		}
	}

	
	private boolean handleException(Throwable ex) {
		if (ex == null) {
			return false;
		}
		new Thread() {
			@Override
			public void run() {
				Looper.prepare();
				Looper.loop();
			}
		}.start();
		PushService.actionStop(mContext);
		collectDeviceInfo(mContext);
		saveCrashInfo2File(ex);
		
		return true;
	}
	
	public void collectDeviceInfo(Context ctx) {
		WindowManager w = (WindowManager)ctx.getSystemService(Context.WINDOW_SERVICE);
		infos.put("client_screen", w.getDefaultDisplay().getWidth() + "x" + w.getDefaultDisplay().getHeight());
		try {
			PackageManager pm = ctx.getPackageManager();
			PackageInfo pi = pm.getPackageInfo(ctx.getPackageName(), PackageManager.GET_ACTIVITIES);
			if (pi != null) {
				String versionName = pi.versionName == null ? "null" : pi.versionName;
				String versionCode = pi.versionCode + "";
				infos.put("versionName", versionName);
				infos.put("versionCode", versionCode);
			}
		} catch (NameNotFoundException e) {
		}
		Field[] fields = Build.class.getDeclaredFields();
		for (Field field : fields) {
			try {
				field.setAccessible(true);
				infos.put(field.getName(), field.get(null).toString());
			} catch (Exception e) {
			}
		}
	}

	private String saveCrashInfo2File(Throwable ex) {
		
		final StringBuffer sb = new StringBuffer();
		for (Map.Entry<String, String> entry : infos.entrySet()) {
			String key = entry.getKey();
			String value = entry.getValue();
			sb.append(key + "=" + value + "\n");
		}
		Writer writer = new StringWriter();
		PrintWriter printWriter = new PrintWriter(writer);
		ex.printStackTrace(printWriter);
		Throwable cause = ex.getCause();
		while (cause != null) {
			cause.printStackTrace(printWriter);
			cause = cause.getCause();
		}
		printWriter.close();
		String result = writer.toString();
		sb.append(result);
		try {
			long timestamp = System.currentTimeMillis();
			String time = formatter.format(new Date());
			String fileName = "crash-" + time + "-" + timestamp + ".log";
			if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
				String path = "/sdcard/crash/";
				File dir = new File(path);
				if (!dir.exists()) {
					dir.mkdirs();
				}
				FileOutputStream fos = new FileOutputStream(path + fileName);
				fos.write(sb.toString().getBytes());
				fos.close();
			}
			else{
				String path = mContext.getApplicationInfo().dataDir + "/" + "crash.log";
				File file = new File(path);
				if (file.exists()) {
					file.delete();
				}
				file.createNewFile();
				FileOutputStream fos = new FileOutputStream(path);
				fos.write(sb.toString().getBytes());
				fos.close();
			}
			new Thread(new Runnable() {
				public void run() {
					// TODO Auto-generated method stub
					Map<String, String> map = new HashMap<String, String>();
					map.put("message", sb.toString());
					map.put("source", Secure.getString(mContext.getContentResolver(), Secure.ANDROID_ID));
					String url = HttpUtil.BASE_URL + "feedback/send";
					try {
						JSONObject jsonObj = new JSONObject(HttpUtil.postRequest(url, map));
						String result = jsonObj.getString("result");
						if(result.equals("1")){
						}
						else{
						}
					}  catch (Exception e) {
						// TODO Auto-generated catch block
						e.printStackTrace();
						}
				}
			}).start();
			return fileName;
		} catch (Exception e) {
		}
		return null;
	}
}
